phylacto-, phylact-, phylac-, phylax-

1. A hypersensitivity reaction to the ingestion or injection of a substance (a protein or drug) resulting from a prior contact with a substance.
2. The hypersensitive state which may develop after the introduction of a foreign protein or other antigen into the body tissues.
3. A severe, immediate, potentially fatal bodily reaction to contact with a substance (antigen) to which the individual has previously been exposed.

It is often triggered by antiserum, antibiotics, or insect stings.

Nonspecific defense reactions of the body, e.g., phagocytosis, vascular and other reactions of inflammatory processes.

The avoidance of the development or spread of a certain disease by administering a chemical agent.

Descriptive of the resistance to low temperatures: Some bacteria and microorganisms are thought to be crymophylactic and cannot be destroyed even by freezing temperatures.
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Resistant to low temperatures; said of bacteria.

Premature spontaneous arousal from sleep, such as early morning waking.

An attempt to prevent the effects of biological aging.

Intraocular inflammation: Phacoanaphylactic uveitis can occur after an extracapsular cataract extraction, which is believed to be an immune reaction to the patient's liberated lenticular proteins.

Hypersensitivity to protein of the lens of the eye.

Hypersensitivity to the protein of the crystalline lens of the eye, induced by the escape of material from the lens capsule.

Regarding the stimulation of the production of protective antibodies: immunogenic; antigenic: In her medical class, Mary learned that phylacagogic properties concerned the induction of an immune response.

A friendly association between ants and termites.